I came from the miata world. My miata had $5300 turbo kit from
www.flyingmiata.com which included full standalone ecu by Hydra, injectors, manifold, intercooler, etc.
A lesson I learned is that if your going to do it, DO IT RIGHT THE FIRST TIME!
I had a jackson racing supercharger before the turbo kit and sold the supercharger. If I did it right the first time, I wouldn't have wasted money on the supercharger.
The supercharger basically gave you band aids to hook up to your stock ecu. Pretty neat idea but if I had to do it again, i'll go with some type of standalone instead of some band aids.
This is what I think a great turbo kit set up would be:
1. Turbo (something with fast spooling cuz are rpm is low) Ball Bearing? Water and oil cool?
2. Engine management: Probably apr x-1 if they work out a feature for boost.
3. Bigger injectors that will plug right up if possible, no harness.
4. Walbro 255lph fuel pump or 190 HIGH Flow pump.
5.Intercooler is a MUST! (you can subract $ for those who don't want it)
6. Boost controller (if x-1 can't control it)
7. Blow off valve
8. Wastegate? if external.
9. Pipings for intercooler. (on my flying miata they gave me silicone hoses. A new thing? But some prefer the metal pipings)
10. Downpipe
11. Manifold
12. Stainless steel oil and water lines.
13. Air Filter
That's what I can think of right now...